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Design of a Laboratory Scale Test Facility for Cross Flow Micro- and Ultra- Filtration Membranes

材料科学与工程（中英文A版） 2016年第2期6卷 43-50页

作者： Muhammad Humble Khalid Tareen dr. Torsten Brinkmann prof. dr. samia khakwani Kristian Buhr Holger Pingel dr. Juliana Isabel Clodt dr. Nasir M. Ahmad Helmholtz-Zentrum Geesthacht Zentrum J~r Material- und Kiistenforschung GmbH Institute of Polymer ResearchMax-Planck-Strafle 1 21502 Geesthacht Germany Department of Chemistry The Women University Multan Pakistan Polymer and Surface Engineering Lab School of Chemical and Materials Engineering National University of Sciences andTechnology H-12 Sector lslamabad Pakistan

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Effect of seedling age and water depth on morphological and physiological aspects of transplanted rice under high temperature

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2005年第5期6卷 389-395页

作者： khakwani Abdul Aziz SHIRAISHI Masaaki ZUBAIR Muhammad BALOCH Mohammad Safdar NAVEED Khalid AWAN Inayatullah Agricultural Research Institute Dera Ismail Khan NWFP PakistanJapan International Cooperation Agency Tsukuba International Centre Tsukuba Ibaraki JapanAgricultural Research Institute Dera Ismail Khan NWFP PakistanAgricultural Research Institute Dera Ismail Khan NWFP PakistanAgricultural Research Institute Dera Ismail Khan NWFP PakistanFaculty of Agriculture Gomal University Dera Ismail Khan NWFP Pakistan

To study the effect of high temperature, rice seedlings 20, 30, 40 and 50 d were kept at 5, 10, 15 and 20 cm water depth in a water pool. Meteorological findings indicated that water temperature varied up to 10 cm but became stable below this depth. Deep water inflicted higher tiller mortality, minimal increase in dr. weight of aerial parts and leaf area, decrease in root length, and decrease in root dr. weight especially at 20 cm water depth and produced an unbalanced T/R ratio (top versus root dr. weight). However, deep water tended to increase plant length. These parameters, however, excel in shallow water. Older seedlings, with the exception of root dr. weight, could not perform well compared to young seedlings in all physiological and morphological aspects. The study revealed that seedlings, particularly young ones, stand well in shallow water and can cope with high temperature.

关键词：温度移载稻种子生理学形态学水

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Effect of Establishment Methods and Weed Management Practices on Some Growth Attributes of Rice

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Rice science 2006年第2期13卷 131-140页

作者： Mohammad Safdar BALOCH Inayat Ullah AWAN Gul HASSAN Abdul Aziz khakwani Department of Agronomy Faculty of Agriculture Gomal University Dera Ismail Khan NWFP PakistanDepartment of Biomechanical Systems Faculty of Agriculture Ehime University Tarumi 3-5-7 Matsuyama 790-8566 Japan Weed Science Department NWFP Agricultural University Peshawar 25130 NWFP Pakistan Agricultural Research Institute Dera Ismail Khan NWFP Pakistan)

Studies were carried out for two years to evaluate the effect of methods of sowing and weed control practices on the productivity of transplanted and direct wet-seeded rice in Dera Ismail Khan, NWFP, Pakistan. The experiment was laid out in a randomized complete block design with a split plot arrangement. The planting techniques viz. transplanting and direct seeding were maintained in main plots while weed control practices included the use of granular herbicide Sunstar 15WG （ethoxy sulfuron）, Machete 60EC （butachlor）, conventional hand weeding, and the weedy check （control） were assigned to the sub-plots. Data were recorded on weed parameters like weed density and dr. weed biomass 60 and 90 days after sowing （DAS）; agronomic parameters including plant population, number of panicles and paddy yield and physiological parameters like leaf area index and net assimilation rate 45 and 90 DAS. The planting methods and weed management significantly influenced most of the parameters studied. The data revealed that the paddy yield and its components were significantly higher in the transplanted method than that in direct-seeded method, while the weed density and biomass were lower in the transplanted plots than the direct-seeded plots. Among weed management tools, the maximum paddy yield was obtained in hand weeding, closely followed by herbicide application Machete 60EC during both cropping seasons.

关键词： rice transplantation direct-seeding herbicides weed population leaf area index net assimilation rate paddy yield

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